I am going to break down why some ratings are so low in my opinion. People get into this game with expectancy of something but When something happens that changes everything about how you thought the game was going to play out alot of people can't look past that and that happens right in the beginning.
I will admit the story is a lot darker than the previous game's but that does not mean that it should be rated badly the game focuses on tragedy, something that is part of our daily lives just because the writers created such strong characters does not mean that if something about these characters change or get hurt that the game is bad it just focus on darker subjects